Power control for uplink transmission multiplexing

Abstract

Methods, systems, and devices for wireless communications are described. The method includes assigning a first priority level to a multiplexed transmission on a first component carrier based on a priority of content (e.g., highest priority content) of a first uplink transmission and a second uplink transmission included in the multiplexed transmission, assigning a second priority level to a third uplink transmission on a second component carrier based on a content of the third uplink transmission, where the third uplink transmission overlaps in time with the multiplexed transmission, and performing the multiplexed transmission on the first component carrier at a first transmit power and the third uplink transmission on the second component carrier at a second transmit power, where the first transmit power and the second transmit power are respectively based on the first priority level and the second priority level.

1 . A method for power control prioritization of wireless communication by a user equipment (UE), comprising:
 assigning a first priority level to a multiplexed transmission on a first component carrier, the multiplexed transmission comprising a first uplink transmission multiplexed with a second uplink transmission, wherein the first priority level assigned to the multiplexed transmission is based at least in part on a priority of content of the first uplink transmission and the second uplink transmission;   assigning a second priority level to a third uplink transmission on a second component carrier based at least in part on a content of the third uplink transmission, wherein the third uplink transmission overlaps in time with the multiplexed transmission;   allocating, based at least in part on scheduled transmit powers of the multiplexed transmission and the third uplink transmission exceeding a maximum power, power to the multiplexed transmission and the third uplink transmission in accordance with the first priority level and the second priority level, wherein a total transmit power of the multiplexed transmission and the third uplink transmission satisfies the maximum power based at least in part on the allocation; and   performing the multiplexed transmission on the first component carrier and the third uplink transmission on the second component carrier in accordance with the allocated power.   
     
     
         2 . The method of  claim 1 , wherein the first priority level or the second priority level, or both, is determined according to a priority hierarchy, and wherein the first priority level assigned to the multiplexed transmission is based at least in part on a highest priority of content of the first uplink transmission and the second uplink transmission. 
     
     
         3 . The method of  claim 2 , wherein according to the priority hierarchy, content associated with a random access channel on a primary cell has a first priority and content associated with a sounding reference signal transmission has a second priority, wherein the first priority has a higher priority than the second priority and a higher priority than a priority of an uplink control transmission or a priority of an uplink data transmission, or both, and the second priority has a lower priority than the priority of the uplink control transmission or the priority of the uplink data transmission, or both. 
     
     
         4 . The method of  claim 2 , wherein according to the priority hierarchy, content associated with a physical uplink channel that comprises one or more of a high priority hybrid automatic repeat request acknowledgment feedback, or a high priority scheduling request, or a high priority link recovery request, has a higher priority than content associated with a physical uplink channel that comprises a high priority channel status information. 
     
     
         5 . The method of  claim 2 , wherein according to the priority hierarchy, content associated with a physical uplink channel that comprises a high priority channel status information has a higher priority than content associated with a high priority physical uplink shared channel that lacks a high priority uplink control information. 
     
     
         6 . The method of  claim 2 , wherein according to the priority hierarchy, content associated with a high priority physical uplink shared channel that lacks a high priority uplink control information has a higher priority than content associated with a low priority physical uplink channel that comprises one or more of a low priority hybrid automatic repeat request acknowledgment feedback, or a low priority scheduling request, or a low priority link recovery request, or any combination thereof. 
     
     
         7 . The method of  claim 2 , wherein according to the priority hierarchy, content associated with a low priority physical uplink channel that comprises one or more of a low priority hybrid automatic repeat request acknowledgment feedback, or a low priority scheduling request, or a low priority link recovery request, has a higher priority than content associated with a low priority physical uplink channel that comprises a low priority channel state information. 
     
     
         8 . The method of  claim 2 , wherein according to the priority hierarchy, content associated with a low priority physical uplink channel that comprises a low priority channel state information has a higher priority than content associated with a low priority physical uplink shared channel that lacks uplink control information. 
     
     
         9 . The method of  claim 1 , wherein assigning the first priority level to the multiplexed transmission comprises:
 assigning the first priority level to a first set of symbols of the multiplexed transmission, the first set of symbols associated with the first uplink transmission and the second uplink transmission; and   assigning a third priority level to a second set of symbols of the multiplexed transmission, the second set of symbols associated with one of the first uplink transmission or the second uplink transmission.   
     
     
         10 . A user equipment (UE) for power control prioritization of wireless communication, comprising:
 one or more memories storing processor-executable code; and   one or more processors coupled with the one or more memories and individually or collectively operable to execute the code to cause the UE to:
 assign a first priority level to a multiplexed transmission on a first component carrier, the multiplexed transmission comprising a first uplink transmission multiplexed with a second uplink transmission, wherein the first priority level assigned to the multiplexed transmission is based at least in part on a priority of content of the first uplink transmission and the second uplink transmission; 
 assign a second priority level to a third uplink transmission on a second component carrier based at least in part on a content of the third uplink transmission, wherein the third uplink transmission overlaps in time with the multiplexed transmission; 
 allocate, based at least in part on scheduled transmit powers of the multiplexed transmission and the third uplink transmission exceeding a maximum power, power to the multiplexed transmission and the third uplink transmission in accordance with the first priority level and the second priority level, wherein a total transmit power of the multiplexed transmission and the third uplink transmission satisfies the maximum power based at least in part on the allocation; and 
 perform the multiplexed transmission comprising the first uplink transmission multiplexed with the second uplink transmission on the first component carrier and the third uplink transmission on the second component carrier in accordance with the allocated power. 
   
     
     
         11 . The UE of  claim 10 , wherein the first priority level or the second priority level, or both, is determined according to a priority hierarchy, and wherein the first priority level assigned to the multiplexed transmission is based at least in part on a highest priority of content of the first uplink transmission and the second uplink transmission. 
     
     
         12 . The UE of  claim 11 , wherein according to the priority hierarchy, content associated with a random access channel on a primary cell has a first priority and content associated with a sounding reference signal transmission has a second priority, wherein the first priority has a higher priority than the second priority and a higher priority than a priority of an uplink control transmission or a priority of an uplink data transmission, or both, and the second priority has a lower priority than the priority of the uplink control transmission or the priority of the uplink data transmission, or both. 
     
     
         13 . The UE of  claim 11 , wherein according to the priority hierarchy, content associated with a physical uplink channel that comprises one or more of a high priority hybrid automatic repeat request acknowledgment feedback, or a high priority scheduling request, or a high priority link recovery request, has a higher priority than content associated with a physical uplink channel that comprises a high priority channel status information. 
     
     
         14 . The UE of  claim 11 , wherein according to the priority hierarchy, content associated with a physical uplink channel that comprises a high priority channel status information has a higher priority than content associated with a high priority physical uplink shared channel that lacks a high priority uplink control information. 
     
     
         15 . The UE of  claim 11 , wherein according to the priority hierarchy, content associated with a high priority physical uplink shared channel that lacks a high priority uplink control information has a higher priority than content associated with a low priority physical uplink channel that comprises one or more of a low priority hybrid automatic repeat request acknowledgment feedback, or a low priority scheduling request, or a low priority link recovery request, or any combination thereof. 
     
     
         16 . The UE of  claim 11 , wherein according to the priority hierarchy, content associated with a low priority physical uplink channel that comprises one or more of a low priority hybrid automatic repeat request acknowledgment feedback, or a low priority scheduling request, or a low priority link recovery request, has a higher priority than content associated with a low priority physical uplink channel that comprises a low priority channel state information. 
     
     
         17 . The UE of  claim 11 , wherein according to the priority hierarchy, content associated with a low priority physical uplink channel that comprises a low priority channel state information has a higher priority than content associated with a low priority physical uplink shared channel that lacks uplink control information. 
     
     
         18 . A non-transitory computer-readable medium storing code for power control prioritization of wireless communication by a user equipment (UE), the code comprising instructions executable by one or more processors to:
 assign a first priority level to a multiplexed transmission on a first component carrier, the multiplexed transmission comprising a first uplink transmission multiplexed with a second uplink transmission, wherein the first priority level assigned to the multiplexed transmission is based at least in part on a priority of content of the first uplink transmission and the second uplink transmission;   assign a second priority level to a third uplink transmission on a second component carrier based at least in part on a content of the third uplink transmission, wherein the third uplink transmission overlaps in time with the multiplexed transmission;   allocate, based at least in part on scheduled transmit powers of the multiplexed transmission and the third uplink transmission exceeding a maximum power, power to the multiplexed transmission and the third uplink transmission in accordance with the first priority level and the second priority level, wherein a total transmit power of the multiplexed transmission and the third uplink transmission satisfies the maximum power based at least in part on the allocation; and   perform the multiplexed transmission comprising the first uplink transmission multiplexed with the second uplink transmission on the first component carrier and the third uplink transmission on the second component carrier in accordance with the allocated power.   
     
     
         19 . The non-transitory computer-readable medium of  claim 18 , wherein the first priority level or the second priority level, or both, is determined according to a priority hierarchy, and wherein the first priority level assigned to the multiplexed transmission is based at least in part on a highest priority of content of the first uplink transmission and the second uplink transmission. 
     
     
         20 . The non-transitory computer-readable medium of  claim 19 , wherein according to the priority hierarchy, content associated with a random access channel on a primary cell has a first priority and content associated with a sounding reference signal transmission has a second priority, wherein the first priority has a higher priority than the second priority and a higher priority than a priority of an uplink control transmission or a priority of an uplink data transmission, or both, and the second priority has a lower priority than the priority of the uplink control transmission or the priority of the uplink data transmission, or both.